This is the first comprehensive account of the modern international law of treaty interpretation expressed in 1969 Vienna Convention, Articles 31-33. As stated by the anonymous referee, it is the most theoretically advanced and analytically refined work yet accomplished on this topic. The style of writing is clear and concise, and the organisation of the book meets the demands of scholars and practitioners alike.

The Commentary on the Vienna Convention on the Law of Treaties provides an in-depth article-by-article analysis of all of the Vienna Convention’s provisions. Each provision’s analysis consists of (I) Purpose and Function of the Article, (II) Historical Background with Negotiating History, (III) Elements of the Article and finally (IV) Treaties of International Organizations. In short, the present Commentary contains a comprehensive legal analysis of all aspects of the international law of treaties. Furthermore, where the law of treaties reaches into other fields of international law, e.g. the law of state responsibility, the relevant interfaces are discussed and contextualized. With its focus on international practice, the Commentary is an invaluable reference for both academia and practitioners of international law.

This book offers a comprehensive analysis of the law of treaties based on the interplay between the 1969 Vienna Convention on the Law of Treaties and customary international law. Written by a team of renowned international lawyers, it offers new insight into the basic concepts and methodology of the law of treaties and its problems.

The 1969 and 1986 Vienna Conventions on the Law of Treaties are essential components of the international legal order. This is the first Commentary on their provisions, containing thorough and well-structured analyses of each of their Articles. It draws on preparatory works and practice and is written by a large collection of experts from the field

After the Second World War, the dissolution of European empires and emergence of 'new states' in Asia, Africa, Oceania, and elsewhere necessitated large-scale structural changes in international legal order. In Completing Humanity, Umut Özsu recounts the history of the struggle to transform international law during the twentieth century's last major wave of decolonization. Commencing in 1960, with the General Assembly's landmark decolonization resolution, and concluding in 1982, with the close of the third UN Conference on the Law of the Sea and the onset of the Latin American debt crisis, the book examines the work of elite international lawyers from newly independent states alongside that of international law specialists from 'First World' and socialist states. A study in modifications to legal theory and doctrine over time, it documents and reassesses post-1945 decolonization from the standpoint of the 'Third World' and the jurists who elaborated and defended its interests.

How should international treaties be interpreted over time? This book addresses what evolutive interpretation looks like in reality.

In response to a climate in which respect for international law and the law of the European Union is rapidly losing ground, Paul Gragl advocates for the revival of legal monism as a solution to potentially irresolvable normative conflicts between different bodies of law. In this first comprehensive monograph on the theory as envisaged by the Pure Theory of Law of the Vienna School of Jurisprudence, the author defends legal monism against the competing theories of dualism and pluralism. Drawing on philosophical, epistemological, legal, moral, and political arguments, this book argues that only monism under the primacy of international law takes the law and the concept of legal validity seriously. On a practical level, it offers policy-makers and decision-makers methods of dealing with current problems and a means to restore respect for international law and peaceful international relations. While having the potential to revive and elicit further interest and research in monism and the Pure Theory of Law, the comprehensiveness and scope of the book also make it a choice text for inter-disciplinary scholars.

This updated and revised second edition, with contributions from renowned experts, provides a comprehensive scholarly framework for analyzing the theory and history of international law. Featuring an array of legal and interdisciplinary analyses, it focuses on those theories and developments that illuminate the central and timeless basic concepts and categories of the international legal system, highlighting the interdependency of various aspects of theory and history and demonstrating the connections between theory and practice.

While treaties can be notoriously difficult to amend by formal means, they must nevertheless be adapted over time in order to remain useful. Herein lies the role of subsequent practice as a key tool for treaty change. Subsequent practice-a well-established means of treaty interpretation-sometimes diverges from the original treaty provision to such an extent that it can no longer be said to constitute an act of interpretation or application. Rather, it becomes, in effect, one of treaty modification. The modification of treaties by subsequent practice extends to all fields of international law, from the law of the sea, environmental law, and investment law, to human rights and humanitarian law. Such modifications can have significant practical consequences, from revising or creating new rights and obligations, to establishing new institutional mechanisms. Determining when and how treaty modification by subsequent practice occurs poses difficulty to legal scholars and dispute settlement bodies alike, and impacts States' expectations as to their treaty obligations. This significant yet underexplored process is the focus of this book. Modification of Treaties by Subsequent Practice proves that subsequent practice can-under carefully defined conditions that ensure strict accordance with the will of the treaty parties-alter, supplement, and terminate treaty provisions or even entire treaty frameworks. It can also generate customary law and fuel regime interaction. Ultimately, this book demonstrates the relevance and dynamism of the process of treaty modification by subsequent practice, emphasizing the need to deal with the issue head on, and explains-on a theoretical and practical level-how it can be identified and dealt with more consistently in the future. The book thus contributes to a deeper understanding of the process of treaty modification by subsequent practice and its continued role in striking the judicious balance between the stability of treaties on the one hand, and the organic evolution of the law on the other.